Self-discharging car



K. BARTH.

SELF DISCHARGING CAR.

APPLICATION FYILEDJAN. I4, 1921.

1,428,131. t d pt- 5 1922. I

Fig.4.

Patented Sept. 5, 1922" rarer ores.

SCHAIT, or nssnn-on-rnn-nnnn, GERMANY.

snLr-nrscnaneme can. 3

Application 'filedJanuary 14:, 1921. Serial No. 437,324.

To (ZZZ whom it may concern Be it known that I, KARL EARTH, residing atEssen, Germany, a citizen of the German Republic, have invented acertain new and useful improvement in Self'Discharging Cars, of whichthe following isa specification.

This invention relates to selfdischarging cars in the case of whichthere are arranged on different sides of the middle longitudinal planemovable supports for the tiltable bot tom, a common, displaceableabutment member being always provided for t-wo'such supports. Moreparticularly, it is the object of the invention to provide a simplifiedform of construction for cars of this kind.

The invention will'be further described with reference to theaccompanying drawing which illustrates diagrammatically one embodimentof'tl e subject matter of themvention by way of example and in which:

Fig. l is a cross section of the selfdischarging car ready for charging,and

Fig. 2 is a like View of the car after effect ing a. discharge towardone side.

Referring to the drawing, the two end walls A are rigidly fixed to theunderframe A of the car. In addition, there is rigidly connected to theunderframe, both on the front and rear end thereof, a pedestal In themiddle of these pedestals A is mounted a longitudinal shaft B traversingthe front walls A and adapted to beturned by means of a hand lever b ifneed be fixed to each of its ends. Upon the pedestals A there arefurthermore mounted to eitherside of the middle longitudinal planeoft-he car, at an equal distance therefrom and at the same level abovethe shaft B, two crank shafts C. These two shafts C are each providedwith a plurality of crank arms-c arranged in pairs along the same crosssectional planes and abut-ting by means of rollers c lodged at theirfree ends, on abutment members Z1 rigidly fixed on the shaft B. Theactive surface ofeach of these abutment members comprises asemi-circular portion 6 to which adjoin cam shaped portions 6 On thec-rankarms 0 there are provided supports 0 shaped on the outside so asto constitute open sockets and adapted to support the bottom D, whichlatter, when the can is ready for loading, rests on said supports 0 bymeans of pins (Z fixed for their part to the re-inforced sheetmetal supporting plates d of the bottom.. The abutment members b are, in thisposition of the car, so adjusted. that the semi-circular portion 5ofthem, the axis of curvature of which coincides with theaxis ofrotation of the shaft B, willbe situated symmetrically. to the middlelongitudinal plane of the car abovethesha-ft l3 ig. 1'). In thisconvention of its rollers 0 on the two ends of thesemi-circular portion6 of the abutment members Z2 and are thus secured against rotation underthe actibn of the forces trans mitted by the pins CF. The side walls Eof the car are guided in their movements in the knownmanner along theirupper ends by means of guide links F, lodged on the front walls A andare articulated at their lower ends with the bottom D in a pin andsocket connectionin suchwise that this connection will be automaticallyreleased on the discharge side when the bottom executes a tipping motion(Fig. 2).

The manner of operation of the car is as follows:

If the car is to be discharged toward one side, say, for example, towardthe left, then the shaft Bis rotated in the direction indicated by thearrow as. In this contingency, the crank arms 0 disposed to the right ofthe middle longitudinal plane along with the supports 0 remain at rest,as the rollers c of these crank arms continue to abut against thesemi-circular portion 6 disposed coaxially to theshaft B, of the activesurface of the abutment members 6 the left-hand side, however, therollers c of'the crank arms c are deprived of their abutment on thesemi-circular portion 6 so that the bottom D, acting under the weight ofthe goods commences to rotate about the right-hand supports 0 Theleft-hand sup ports 0 are depressed, during this operation, bythepins (Zfixed to the bottom, and the rollers c of the appropriate crank arms,

which are simultaneously turned toward the middle longitudinal plane,pass over on to ,tingency, the crank arms bear up by interthe cam-shapedportions 6 of the active surface of the abutment members 6 As thesecrank arms rotate, anduin consequence of which rotation each of theabutment members b is turned by intervention of the rollers 0 for about90 in the direction of the arrow m (Fig. 2), the left-hand pins 6Z2 ofthe bottom depart from the open socket-- shaped supports 0 and finallyrelease the supporting bodies formed by the crank arms 0 and thesupports 0 Hereupon the bottom continues to move until it attains thedischarge position (Fig. 2), whereas the crank arms 0 which have beenreleased, are secured in the angular position they have attained by thefriction existing between the respective shaft C and its bearlngs.

After the car has been discharged, the bottom, which is now balanced bythe weight of the side wall E carried by its upraised end, is returnedby hand into the loading position (Fig. l), in which the bottom, whenempty is secured by the weight of the side wall against any automaticrotation in the discharging direction. Hereupon the shaft 13 along withthe abutment members 5 is rotated back into its initial position (Fig.1). Owing to the contact existing between the rollers c and the,surfacesb of the abutment members, the left-hand crank arms 0 are at the sametime likewise returned into their original position, the supports 0 ofthese crank arms again entering into engagement with the pins 6V, andbeing secured in this position after the rollers 0 have passed over onto the semi-circular portion 6 oi the active surface of the abutmentmembers 5 (Fig. 1).

Whenever the discharge is to be effected toward the right, the shaft Bis rotated in the direction counter to that indicated by the arrow 00.The operations taking place in this case correspond exactly, withsuitable variations, to those just described and therefore do notrequire any further explanation.

I claim:

1. A self-discharging receptacle, comprising a bottom member revolublymounted with respect to a longitudinal axis of said receptacle, aplurality of supporting crank members cooperating with said bottommember, central cam device selectively locking said bottom supportingcrank members in place, said cam device automatically releasing one ofsaid supporting cam members from supporting engagement with said bottommember on the discharging action 0 said receptacle on a predeterminedmotion of said cam, and means on said cam device for returning saidreleased crank. member to supporting engagement with said bottom memberon the return of said bottom member to the filling position of saidreceptacle.

2. A self-discharging receptacle, compris ing a bottom member revolublymounted with respect to a longitudinal axis of said receptacle, aplurality of supporting crank members cooperating with said bottommember, a central cam device selectively locking said bottom supportingcrank members in place, said cam device automatically releasing one ofsaid supporting cam members from supporting engagement with said bottommember on the discharging action or said receptacle on a predeterminedmotion of said cam, and means on said cam device for returning saidreleased crank member to supporting engagement with said bottom memberon the return of said bottom member to the filling position of saidreceptacle, said cam device having a semi-circular portion which latterportion simultaneously locks said crank members in position when saidreceptacle is in loading position.

3. A self-discharging receptacle, comprising a bottom member revolublymounted with respect to a longitudinal axis of said receptacle, aplurality of supporting crank members cooperating with said bottommember, a central cam device selectively locking said bottom supportingcrank members in place, said cam device automatically releasing one ofsaid supporting cam members from supporting engagement with said bottommember on the discharging action of said receptacle on a predeterminedmotion of said cam, and means on said cam device for returning saidreleased crank member to supporting engagement with said bottom memberon the return of said bottom member to the filling position of saidreceptacle, said cam device having a semi-circular portion which latterportion simultaneously locks said crank members in position when saidreceptacle is in loading position, said cam device having a cut-awayportion for selectively releasing either of said crank members to permitsaid bottom member to rotate in any predetermined direction by virtue ofthe load.

The foregoing specification signed at Essen, Germany, this 15th day ofNovember, 1920.

HANS GOTTSMANN, JOHANN DnoKEns.

